Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam duoi goc snippets" » "dam cuoi goc snippets", "nam duoi goc snippets", "dam duong goc snippets", "dam duoc hoc snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dam duoi goc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dam duoi goc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam duoi goc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam duoi goc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.